package com.xiaoming;


import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringContextUtils implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    public static ApplicationContext getApplicationContext() {
        if (applicationContext == null)
            throw new IllegalStateException(
                    "Application 為空");
        return applicationContext;
    }

    public static Object getBean(Class<?> name) {
        return getApplicationContext().getBean(name);
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringContextUtils.applicationContext = applicationContext;
    }
}
